KR102381057B1 - System and Method of Measuring to Improve the Tactical Use of AIS Targets - Google Patents

Abstract

According to one embodiment of the present invention, a system for processing target information of an automatic identification system (AIS) is provided. The method comprises the steps of: receiving AIS target information from the AIS; displaying the AIS target information; determining whether to set the AIS target information as tactical target information; managing the AIS target information as tactical target information; and generating one tactical target information including the AIS target information and displaying the generated one tactical target information. Here, the one tactical target information compares the AIS target information, selected according to the determining step with the tactical target information obtained by other radars/sensors and, as fused information, includes X/Y/Z position values, identification information, and environment information. According to the present invention, tactical target information including one AIS target information is provided such that it is possible to solve the difficulty of recognition caused by the existing double display.

Description

System and Method of Measuring to Improve the Tactical Use of AIS Targets

The present invention relates to a system and method for processing target information of an automatic ship identification device, and more particularly, to a system and method for selectively processing target information of a ship automatic identification device into tactical target information.

When linking the current ship combat system and the Automatic Ship Identification System (AIS), there is a situation where the operator's awareness of the battlefield situation is limited. Unlike targets acquired with other radar/sensors, the current warship combat system does not classify AIS targets as tactical targets. Accordingly, the dynamic information (information related to the movement of the ship) of some AIS targets is displayed on the ship combat system console in a missing state, resulting in a problem that only half of the information is provided.

Therefore, in the present invention, it is intended to propose a method that allows the combat system console operator to more efficiently recognize the battlefield situation around the ship by more efficiently utilizing the information on the AIS target received from the automatic ship identification device.

The present invention intends to propose a system and method for processing information on a target of a ship automatic identification device.

The present invention intends to propose a system and method for selectively processing target information of a ship automatic identification device into tactical target information.

An object of the present invention is to propose a system and method for displaying target information of an automatic vessel identification device and tactical target information received from other sensors as the same tactical target information.

In a method for processing target information of an automatic ship identification device according to an embodiment of the present invention, the method comprising: receiving AIS target information from an automatic ship identification device (AIS); displaying the AIS target information; determining whether to set the AIS target information as tactical target information; managing the AIS target information as tactical target information; and generating and displaying one tactical target information including the AIS target information, wherein the one tactical target information is a tactic obtained by acquiring the selected AIS target information from other radars/sensors according to the determining step. Information that is compared and fused with target information, characterized in that it includes X/Y/Z position values, identification information, and environmental information.

According to an embodiment, the managing of the tactical target information may include: confirming whether to set or interlock the AIS target information received from the other ship as the tactical target information; and displaying the identified AIS target information to be managed as tactical target information.

According to an embodiment, the managing of the tactical target information may include: checking a message type of the received AIS target information; If the checked message type is different, processing as a predefined message type 1; and controlling to selectively display static information and a cause log by checking the presence or absence of dynamic information when the checked message types are the same, wherein the dynamic information is related to the movement of the ship's position, speed, course, etc. It includes related information, and the static information is characterized in that it includes unique information of the vessel, such as the name, type, and vessel identification number of the vessel.

In the system for processing target information of the automatic ship identification device according to an embodiment of the present invention, the receiving unit for receiving the AIS target information from the automatic ship identification device (AIS); and a determination unit displaying the AIS target information, determining whether to set the AIS target information as tactical target information, and controlling the AIS target information to be managed as tactical target information, wherein the determination unit includes the AIS target information Control to generate and display one tactical target information including As information, it is characterized in that it includes X/Y/Z position values, identification information, and environment information.

According to an embodiment, the determination unit confirms whether to set or interlock the AIS target information received from the other ship as the tactical target information; It is characterized in that it controls a display unit that displays the identified AIS target information to manage the tactical target information.

According to an embodiment, the determination unit checks the message type of the received AIS target information, and when the checked message type is different, controls to process it as a predefined message type 1, and when the checked message type is the same , control the display unit to selectively display static information and cause log by checking the presence or absence of dynamic information, wherein the dynamic information includes information related to movement, such as the position, speed, and course of the vessel, and the static information is the vessel It is characterized in that it includes unique information of the corresponding vessel, such as the name, type, and vessel identification number of the ship.

According to an embodiment of the present invention, in the warship combat system interlocking with the same automatic ship identification device, it provides the advantage of enabling the efficient use of AIS ship information by reflecting the smooth situation judgment of the combat system operator when a phenomenon occurs. Through this, the combat system console operator has the advantage of providing assistance in recognizing the battlefield around the ship and quickly determining the situation.

In addition, the AIS information that is managing dynamic/static information is selectively used as tactical target information, and tactical target information including one AIS target information is generated to solve the difficulty of recognition due to the existing double display by the operator. provides the advantage of

1A and 1B are views illustrating a target symbol and target information of an automatic vessel identification device according to an embodiment of the present invention as an example.
2A and 2B are diagrams illustrating a tactical target symbol and target information according to an embodiment of the present invention.
3 is a diagram illustrating an example of double displaying the same target according to an embodiment of the present invention.
4 is a diagram illustrating AIS information being managed without dynamic information according to an embodiment of the present invention.
5 is a diagram illustrating AIS information managing dynamic information/static information according to an embodiment of the present invention;
6 is a diagram schematically illustrating an AIS tactical targeting process according to an embodiment of the present invention.
7A and 7B are diagrams schematically illustrating a window for an automatic ship identification device and a tactical target setting window according to an embodiment of the present invention.
8 is a diagram illustrating an example of displaying information on an automatic vessel identification device as a tactical target according to an embodiment of the present invention.

Terms used in the embodiments of the present invention are selected as currently widely used general terms as possible while considering the functions in the present invention, which may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, etc. . In addition, in a specific case, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than the name of a simple term.

Embodiments of the present invention can apply various transformations and can have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the scope of the specific embodiments, and it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the invention. In describing the embodiments, if it is determined that a detailed description of a related known technology may obscure the subject matter, the detailed description thereof will be omitted.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "comprises" or "consisting of" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, and are intended to indicate that one or more other It should be understood that this does not preclude the possibility of addition or presence of features or numbers, steps, operations, components, parts, or combinations thereof.

In an embodiment of the present invention, a 'module' or 'unit' performs at least one function or operation, and may be implemented as hardware or software, or a combination of hardware and software. In addition, a plurality of 'modules' or a plurality of 'units' are integrated into at least one module and implemented with at least one processor (not shown) except for 'modules' or 'units' that need to be implemented with specific hardware. can be

In an embodiment of the present invention, when a part is "connected" with another part, it is not only "directly connected" but also "electrically connected" with another element interposed therebetween. also includes In addition, when a part "includes" a certain component, this means that other components may be further included rather than excluding other components unless otherwise stated.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. However, the present invention may be implemented in several different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are assigned to similar parts throughout the specification.

Hereinafter, the AIS to which the present invention is applied is an Automatic Identification System, and ship-related information such as ship-to-ship (Ship to Ship) and ship-to-shore (Ship to Shore), ship-related information such as ship's specification, location, speed and course, and navigational safety It includes a system that automatically transmits/receives information by converting it to a VHF frequency. In this case, the information transmission interval may be different depending on the speed of the ship. The speed of the ship may be included separately in a predetermined speed section, and information is transmitted/received according to the transmission speed determined according to the corresponding section.

The AIS function largely includes performing a collision avoidance function, a ship reporting function, an aid to navigation, and a search and rescue function. Therefore, unlike the existing radar, AIS performs the function of judging the existence of other ships and the voyage situation according to the propagation characteristics such as refraction and diffraction even when there are radio wave obstacles around, and thus, clear, route, Since speed can be identified, safety management such as ship collision prevention, wide area control, and search and rescue of distressed ships can be effectively performed.

In addition, the position accuracy by AIS can be within 3m by using the DGPS technology, and by displaying all transmitted and received information data overlaid on the electronic chart, the navigator can quickly By providing information to make decisions, we support maritime collisions, accident prevention, and efficient maritime traffic management.

1A and 1B are diagrams illustrating a target symbol and target information of an automatic vessel identification device according to an embodiment of the present invention as an example.

As shown in FIGS. 1A and 1B, when receiving AIS target information in the existing warship combat system, unlike a target acquired with other radar/sensors, the AIS target information It is not classified as a tactical target. As shown in FIG. 1A , since the corresponding target symbols are all displayed in the same shape and color, they are not classified as tactical targets. Therefore, the AIS target information can only be confirmed as additional information through the AIS target symbol display window and the AIS target information window.

2A and 2B are diagrams illustrating a tactical target symbol and target information according to an embodiment of the present invention as an example.

As shown in Figures 2a and 2b, the corresponding tactical target symbols are displayed in different shapes and colors, so their classification is possible. Also, through the identification information of the tactical target information window, it is possible to confirm whether the tactical target symbols are friendly or according to the engagement result. It is possible to check the information on the target symbol more accurately through the non-confirmation.

In addition, in the case of interlocking the automatic ship identification device in the existing warship combat system, four messages as shown in <Table 1> are used, and other messages are not processed when received. Table 1 below is the combat system-ship automatic identification device interlocking message.

Type Message One Position Report Class A 5 Ship Static and Voyage Related Data 18 Standard Class B CS Position Report 24 Standard Class B Static Data Report

Message No. 1 (Position Report Class A): Dynamic Information of Class A Vessel, Message No. 5 (Ship Static and Voyage Related Data): Static Information of Class A Vessel, Message No. 18 (Standard Class B CS Position Report): Class Dynamic information of B vessel, message 24 (Standard Class B Static Data Report): Indicates static information of class B vessel.

Here, Class A: satisfies the requirements of the International Maritime Organization (IMO) to mount the Automatic Ship Identification System (AIS), and Class B: satisfies only a part of the requirements for loading the AIS of the International Maritime Organization. The dynamic information includes information related to movement such as the position, speed, and course of the vessel, and the static information includes information specific to the vessel, such as the name, type, and International Maritime Organization Number (IMO) of the vessel.

On the other hand, the existing ship combat system does not classify AIS target information as tactical targets, so it is impossible for ship information received from AIS to converge with tactical targets acquired with other radars/sensors. Accordingly, when viewed from the main display screen of the combat system console, as shown in FIG. 3, despite the same target, one tactical target and one AIS target symbol are displayed separately instead of one target symbol. 3 is a diagram illustrating an example of dually displaying the same target according to an embodiment of the present invention. For this reason, when there are many ships around the self-ship, difficulties in operation may occur due to the double display.

On the other hand, it is an environment in which the number of private ships such as fishing boats and cargo ships on the sea during peacetime other than wartime is very large. Therefore, if each vessel receives AIS information that accurately informs its location and uses it as a tactical target, the efficiency of recognizing the battlefield around its own ship can be increased.

In addition, with respect to the phenomenon in which AIS information is displayed without dynamic information, the following problems exist. Automatic Vessel Identification System (AIS) is ITU-RM. Although information is exchanged using 27 messages according to the 1371-4 standard. The current combat system is implemented to process only the four messages mentioned in Table 1. Therefore, if a message other than 4 is received, it is not processed, and if a message including a value out of range is received, the same processing is performed.

However, unlike the current state of implementation of the combat system-automatic ship identification device interlocking, in the real environment, the dynamic information of the ship is frequently received through messages except for four, so the phenomenon shown in FIG. 4 occurs during operation.

4 is a diagram illustrating AIS information being managed without dynamic information according to an embodiment of the present invention. As shown in FIG. 4 , if only static information is managed without processing dynamic information, the position, speed, course, etc. of the ship cannot be known from the point of view of the combat system, thereby limiting operation. In addition, since there is no location information, there is a problem that the AIS symbol is not displayed normally on the main display screen of the battle system.

5 is a diagram illustrating AIS information managing dynamic information/static information according to an embodiment of the present invention.

Referring to FIG. 5 , both dynamic and static information are normally received/managed, so information on ships around the vessel can be efficiently utilized, and the corresponding AIS symbol is also normally displayed on the screen when the battle system is in full swing. When the phenomenon shown in FIG. 1 occurs in the actual ship departure environment, the AIVDM message received from the automatic ship identification device is decoded and checked, and as a result, two cases are distinguished as follows.

A. When the message type is different

- Among the dynamic information messages (Type 1, 2, 3) of Class A ships, 2 and 3 are received except for Type 1 being used in the combat system.

B. When the message type is the same but includes a value out of range

- Example: Receive values beyond 91 degrees latitude.

Accordingly, the present invention provides a method for managing AIS target information as a single tactical target by comparing the AIS target information with a target acquired with other radars/sensors in the warship combat system console, and for preventing omission/display of dynamic information related to the movement of the vessel. suggest a way Through this, it is intended to enable the combat system console operator to effectively utilize the AIS target information. Accordingly, in the present invention, a method for tactically targeting AIS target information will be described.

6 is a diagram schematically illustrating the AIS tactical targeting step according to the present invention.

Referring to FIG. 6 , 'operation method determination' is performed to determine whether the AIS target information received according to the present invention is processed in the same manner as the tactical target acquired through other radar/sensors, thereby allowing the combat system console operator to selectively select target information implemented to handle This is to solve the problem caused by the use of AIS target information only as additional information in the existing warship combat system. Since the received AIS target information according to an example of the present invention is to receive information sent from an opposing ship, the determination of whether to operate the corresponding AIS target information as a tactical target in the combat system can be determined by the operator according to the situation. should give room Here, the information is not a target detected by the self-propelled radar wave.

In this regard, FIGS. 7A and 7B are diagrams schematically illustrating a ship automatic identification device window and a tactical target setting window according to an embodiment of the present invention.

7A and 7B, the window of the automatic ship identification device determines whether to set the AIS information received from the other ship as a tactical target. The tactical target setting window determines whether to set the AIS information as a tactical target to confirm whether tactical targeting is operated. As described above, it is necessary to add an operation method determination function to the existing automatic vessel identification system control window as shown in FIGS. 7A and 7B for the implementation of AIS tactical targeting.

If the combat system console operator sets the tactical targeting of the AIS target through the operation method determination function, one It can be managed by fusion as a tactical target. At this time, it is necessary to determine in advance which radar source will be the target by managing the internal value of the combat system for the accuracy of each radar during target fusion.

The automatic ship identification apparatus according to an embodiment of the present invention can be considered to have more accurate location information than a value detected through the radar of its own ship in a way that each ship sends its GPS location in an AIS transmission message. Therefore, if the combat system console operator decides to target the AIS target as a tactical target after judging the situation, it can be managed as shown in FIG. 8 and the target target of the anti-ship target becomes the AIS tactical target.

In the case of tactical targeting of the vessel automatic identification system, the source name for the target becomes AI (example), and therefore, if the AIS target and the other radar/sensor acquired anti-ship tactical target are the same target, it can be managed as one tactical target.

In addition, in the present invention, messages can be processed as follows for two cases of generating dynamic information omission.

A. When the message type is different

- Additional implementation of Type 2 and 3 processing among class A ships' dynamic information messages (Type 1, 2, 3).

B. When the message type is the same but includes a value out of range

- If there is no normal dynamic information, either static information alone is not displayed, or only static information is displayed and then the cause log is displayed on the interlocking stage (for confirmation).

The composition of the dynamic information messages (Type 1, 2, 3) of Class A ships is the same, only the Message Type values, which are fields 0-5, are different from 1 to 3, and only the timing of message occurrence is different depending on the situation of the vessel.

Table 2 below shows the dynamic information message structure of class A ships currently being applied to the combat system-automatic ship identification device interworking.

Field Length Description 0-5 6 Message Type
Unsigned integer: 1 6-7 2 Not Used 8-37 30 Mobile Marine Service Identifier (MMSI) Unsigned integer: 9 digits 38-41 4 Navigational Status
Enumerated type
0Under way using engine1At anchor2Not under command3Restricted maneuverability4Constrained by her draught5Moored6Aground7Engaged in Fishing8Under way sailing9Reserved for future amendment of Navigational Status for HSC10Reserved for future amendment of Navigational Status for WIG11-13Reserved for future use14AIS-SART is active15Not defined (default) 42-49 8 Not Used 50-59 10 Speed Over Ground (SOG)
unsigned integer
Speed over ground is in 0.1-knot resolution from 0 to 102 knots. value 1023 indicates speed is not available, value 1022 indicates 102.2 knots or higher. 60 One Not Used 61-88 28 Longitude
Singned interger
Minutes/10000
Longitude is given in 1/10000 min; divide by 600000.0 to obtain degrees. Values up to plus or minus 180 degrees, East = positive, West \= negative. A value of 181 degrees (0x6791AC0 hex) indicates that longitude is not available and is the default. 89-115 27 Latitude Singned Interger
Minutes/10000
Latitude is given in 1/10000 min; divide by 600000.0 to obtain degrees. Values up to plus or minus 90 degrees, North = positive, South = negative. A value of 91 degrees (0x3412140 hex) indicates latitude is not available and is the default. 116-127 12 Course Over Ground (COG) Unsingned Interger
Relative to true north, to 0.1 degree precision
Course over ground will be 3600 (0xE10) if that data is not available. 128-136 9 True Heading (HDG) Unsingned Interger
0 to 359 degrees, 511 = not available 137-167 31 Not Used

Accordingly, according to an example of the present invention, when dynamic information of a class A ship is received from the combat system as Type 2 or Type 3, the AIS dynamic information is not displayed without major modification of the combat system SW by connecting the Type 1 message processing logic. phenomenon can be solved.

Therefore, the present invention provides the advantage of enabling the efficient use of AIS ship information according to the smooth situation determination of the combat system operator when a phenomenon occurs in the ship combat system interlocking with the same automatic ship identification device. Through this, the combat system console operator has the advantage of providing assistance in recognizing the battlefield around the ship and quickly determining the situation.

In the above, preferred embodiments of the present invention have been described and illustrated using specific terms, but such terms are only for clearly explaining the present invention, and the embodiments of the present invention and the described terms are the spirit of the following claims And it is obvious that various changes and changes can be made without departing from the scope. Such modified embodiments should not be individually understood from the spirit and scope of the present invention, but should be said to fall within the scope of the claims of the present invention.

610: AIS target information received
620: AIS target information display
630: operation method determination
640: target management
650: target fusion

Claims (6)

Displaying an automatic ship identification system window inquiring whether to set the automatic vessel identification system (AIS) target information as tactical target information;
Displaying a tactical target setting window inquiring whether to operate tactical targeting using the AIS target information when it is confirmed that the AIS target information is set as the tactical target information by the operator through the automatic ship identification device window;
receiving AIS target information from an AIS when it is confirmed that the tactical targeting is operated using the AIS target information by the operator through the tactical target setting window;
if the AIS target information is AIS target information for a class A vessel, checking whether a message type of the dynamic information of the AIS target information is a predetermined first message type;
processing the dynamic information of the second or third message type in the same manner as the dynamic information of the first message type when the message type of the dynamic information is the second or third message type as a result of the check; and
When the AIS target generated by the static information of the AIS target information and the processed dynamic information and the anti-ship tactical target acquired from another radar/sensor are the same target, generating and displaying one tactical target information A method of processing target information of an automatic vessel identification device.
According to claim 1,
As a result of the check, if the message type of the dynamic information includes the first message type or a value out of a predetermined range for the dynamic information, processing it as not displaying both the dynamic information and the static information A method of processing the target information of the automatic vessel identification device.
delete A receiver for receiving the AIS target information from the automatic ship identification system (AIS); and
Displays a ship automatic identification device window inquiring whether to set AIS target information as tactical target information, and when it is confirmed that the AIS target information is set as the tactical target information by the operator through the automatic ship identification device window, the AIS Displays a tactical target setting window asking whether to operate tactical targeting using target information, and when it is confirmed by the operator through the tactical target setting window that the tactical targeting is operated using the AIS target information, the receiving unit Receives the AIS target information from the AIS through, and if the AIS target information is AIS target information for a class A vessel, check whether the message type of the dynamic information of the AIS target information is a pre-specified first message type, , as a result of the check, when the message type of the dynamic information is the second or third message type, the dynamic information of the second or third message type is processed in the same way as the dynamic information of the first message type, When the AIS target generated by the static information of the AIS target information and the processed dynamic information and the anti-ship tactical target acquired from another radar/sensor are the same target, comprising a determination unit that generates and displays one tactical target information A system that processes the target information of the automatic ship identification device.
5. The method of claim 4,
The determination unit, as a result of the check, if the message type of the dynamic information includes the first message type or a value out of a predetermined range for the dynamic information, it is processed as not to display both the dynamic information and the static information A system for processing the target information of the automatic ship identification device, characterized in that.
delete

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